Home / 20,262.56-27,957.15-12,304.91

Finding the Fourth Proportional to 20,262.56, 27,957.15 and 12,304.91

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Solution

The fourth proportional to 20,262.56, 27,957.15 and 12,304.91 is: 16,977.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,262.56 : 27,957.15 = 12,304.91 : x
  2. Step 2: Convert to fraction form
    20,262.56/27,957.15 = 12,304.91/x
  3. Step 3: Cross multiply
    20,262.56x = 27,957.15 × 12,304.91
  4. Step 4: Simplify right side
    20,262.56x = 344,010,284.50
  5. Step 5: Solve for x
    x = 344,010,284.50/20,262.56
  6. Step 6: Final answer
    x = 16,977.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.